Piping
93
Lee-Temp Receiver Refrigerant Level
On each receiver at the condenser are two refrigerant-level sight glasses. Refrigerant level will vary
with outside temperature. Check refrigerant level after the unit has been on for at least 15 minutes.
Sight Glass Levels
40°F (4.5°C) and lower—bottom sight glass is 3/4 full
40 to 60°F (4.5 to 15.5°C)—bottom sight glass is full
60°F (15.5°C) and higher—top sight glass is 3/4 full.
9.3.3 Water/Glycol Cooled System
The water/glycol cooled system is factory-charged and includes and includes a Paradenser condenser
and control valves.
Table 56 Water/Glycol-cooled and GLYCOOL suction pressure transducer settings
Function
R-22 R-407C
Gauge (Sea Level)
psiG (kPa)
Absolute
psiA (kPa)
Gauge (Sea Level)
psiG (kPa)
Absolute
psiA (kPa)
Pump-Down Cutout 35 (241) 50 (344) 35 (241) 50 (344)
Pump-Down Reset 65 (448) 80 (552) 65 (448) 80 (552)
Minimum to Start-Cooling 50 (345) 65 (448) 50 (345) 65 (448)
Low-Pressure Cutout (DX only) 20 (138) 35 (241) 20 (138) 35 (241)
Freeze Protection (DX w/Econ-O-Coil) 48 (331) 63 (434) 52 (358) 67 (461)
Due to control processing time, the pumpdown pressure at compressor shut off will be approximately
20 psiG (138 kPa) / 35 psiA (241 kPa) even though the set point is 35 psiG (241 kPa) / 50 psiA (344kPa).
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